#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define TSIZE 45

struct film{
    char title[TSIZE];
    int rating;
    struct film *next;
};
char *s_gets(char *st, int n);

int main(void)
{
    struct film * head = NULL;
    struct film * prev, *current;
    char input[TSIZE];

    puts("Enter first movie title:");
    while(s_gets(input, TSIZE) != NULL && input[0] != '\0')
    {
        current = (struct film*) malloc(sizeof(struct film));
        if(head == NULL)
            head = current;
        else
            prev -> next = current;
        current->next = NULL;
        strcpy(current->title, input);
        puts("Enter your rating <1-10>:");
        scanf("%d", &current->rating);
        while(getchar() != '\n')
            continue;
        puts("Enter next movie title (empty line to stop):");
        prev = current;
    }

    //show the film list
    if(head == NULL)
        printf("No data entered");
    else
        printf("Here is the movie list:\n");
    current = head;
    while(current != NULL)
    {
        printf("Movie: %s Rating: %d\n", current->title, current->rating);
        current = current->next;
    }
    current = head;
    while(current != NULL)
    {
        current = head;
        free(current);
        head = current -> next;
    }
    printf("Bye!\n");

    return 0;
}

char *s_gets(char * st, int n)
{
    char * ret_val;
    char * find;

    ret_val = fgets(st, n, stdin);
    if(ret_val)
    {
        find = strchr(st, '\n');
        if(find)
            *find = '\0';
        else
            while(getchar() != '\n')
                continue;
    }
    return ret_val;
}
